/Engine/Source/Runtime/Datasmith/CADKernel/Public/CADKernel/Math/SlopeUtils.h
Transform a positive slope into an unoriented slope [0, 4] i.e. an equivalent angle between [0, Pi]
a slope between [0, 4]
namespace UE { namespace CADKernel { double UE::CADKernel::TransformIntoUnorientedSlope ( double Slope ) } }